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FR2868654B1 - Procede et systeme de diffusion securisee de flux audiovisuels proteges a un groupe dynamique de recepteurs - Google Patents

Procede et systeme de diffusion securisee de flux audiovisuels proteges a un groupe dynamique de recepteurs

Info

Publication number
FR2868654B1
FR2868654B1 FR0450682A FR0450682A FR2868654B1 FR 2868654 B1 FR2868654 B1 FR 2868654B1 FR 0450682 A FR0450682 A FR 0450682A FR 0450682 A FR0450682 A FR 0450682A FR 2868654 B1 FR2868654 B1 FR 2868654B1
Authority
FR
France
Prior art keywords
receivers
dynamic group
audiovisual
protected
diffusion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR0450682A
Other languages
English (en)
Other versions
FR2868654A1 (fr
Inventor
Daniel Lecomte
Reda Hosny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Medialive SA
Original Assignee
Medialive SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR0450682A priority Critical patent/FR2868654B1/fr
Application filed by Medialive SA filed Critical Medialive SA
Priority to EP05753604A priority patent/EP1733559A1/fr
Priority to PCT/FR2005/000842 priority patent/WO2005101836A1/fr
Priority to CN 200580012087 priority patent/CN1954609A/zh
Priority to US11/547,270 priority patent/US8229117B2/en
Priority to CN 201210052824 priority patent/CN102625148A/zh
Publication of FR2868654A1 publication Critical patent/FR2868654A1/fr
Application granted granted Critical
Publication of FR2868654B1 publication Critical patent/FR2868654B1/fr
Priority to US13/534,349 priority patent/US8782688B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • H04N21/44055—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)
FR0450682A 2004-04-06 2004-04-06 Procede et systeme de diffusion securisee de flux audiovisuels proteges a un groupe dynamique de recepteurs Expired - Fee Related FR2868654B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR0450682A FR2868654B1 (fr) 2004-04-06 2004-04-06 Procede et systeme de diffusion securisee de flux audiovisuels proteges a un groupe dynamique de recepteurs
PCT/FR2005/000842 WO2005101836A1 (fr) 2004-04-06 2005-04-06 Procede et systeme de diffusion securisee de flux audiovisuels proteges a un groupe dynamique de recepteurs
CN 200580012087 CN1954609A (zh) 2004-04-06 2005-04-06 将受保护音频视频流安全广播到动态接收器组的方法和系统
US11/547,270 US8229117B2 (en) 2004-04-06 2005-04-06 Process and system for the secure broadcasting of protected audiovisual streams to a dynamic group of receivers
EP05753604A EP1733559A1 (fr) 2004-04-06 2005-04-06 Procede et systeme de diffusion securisee de flux audiovisuels proteges a un groupe dynamique de recepteurs
CN 201210052824 CN102625148A (zh) 2004-04-06 2005-04-06 将受保护音频视频流广播到动态接收器组的方法和系统
US13/534,349 US8782688B2 (en) 2004-04-06 2012-06-27 Process and system for the secure broadcasting of protected audiovisual streams to a dynamic group of receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0450682A FR2868654B1 (fr) 2004-04-06 2004-04-06 Procede et systeme de diffusion securisee de flux audiovisuels proteges a un groupe dynamique de recepteurs

Publications (2)

Publication Number Publication Date
FR2868654A1 FR2868654A1 (fr) 2005-10-07
FR2868654B1 true FR2868654B1 (fr) 2007-06-22

Family

ID=34945673

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0450682A Expired - Fee Related FR2868654B1 (fr) 2004-04-06 2004-04-06 Procede et systeme de diffusion securisee de flux audiovisuels proteges a un groupe dynamique de recepteurs

Country Status (5)

Country Link
US (2) US8229117B2 (fr)
EP (1) EP1733559A1 (fr)
CN (2) CN1954609A (fr)
FR (1) FR2868654B1 (fr)
WO (1) WO2005101836A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2898458B1 (fr) * 2006-03-10 2008-05-16 Medialive Procede pour la distribution securisee de sequences audiovisuelles, decodeur et systeme pour la mise en oeuvre de ce procede
FR2898451B1 (fr) * 2006-03-13 2008-05-09 Medialive Procede et equipement de distribution de contenus audiovisuels numeriques securises par des solutions interoperables
FR2923126B1 (fr) * 2007-10-30 2009-12-11 Medialive Procede et systeme de distribution securisee de donnees audiovisuelles par marquage transactionnel
CN102025490A (zh) * 2009-12-18 2011-04-20 华为终端有限公司 一种文件分段保护的方法、装置及系统
JP2012124736A (ja) * 2010-12-09 2012-06-28 Fujitsu Ltd 通信インタフェース装置、送信制御方法および切断処理制御方法
CN102300093A (zh) * 2011-08-31 2011-12-28 华中科技大学 一种用于数据文件分发的加密方法
EP2568711A1 (fr) * 2011-09-12 2013-03-13 Thomson Licensing Procédés et dispositifs pour le cryptage de données conservant le format
US8646023B2 (en) 2012-01-05 2014-02-04 Dijit Media, Inc. Authentication and synchronous interaction between a secondary device and a multi-perspective audiovisual data stream broadcast on a primary device geospatially proximate to the secondary device
US9088805B2 (en) * 2012-02-08 2015-07-21 Vixs Systems, Inc. Encrypted memory device and methods for use therewith
US9948695B2 (en) * 2012-03-16 2018-04-17 Alcatel Lucent Enabling delivery of protected content using unprotected delivery services
FR3018125B1 (fr) * 2014-03-02 2017-07-21 Viaccess Sa Procede de fourniture, a un terminal, de contenus multimedias proteges
FR3067541A1 (fr) * 2017-06-23 2018-12-14 Orange Emission et reception d'un flux de donnees
CN112714358A (zh) * 2020-12-29 2021-04-27 武汉烽火富华电气有限责任公司 一种视频流媒体加解密传输方法及系统
CN114640866B (zh) * 2022-05-18 2022-08-16 电子科技大学成都学院 一种基于随机动态的多通道加密方法、装置及系统

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6759198A (en) * 1997-03-14 1998-10-12 Cryptoworks, Inc. Digital product rights management technique
US6351474B1 (en) * 1998-01-14 2002-02-26 Skystream Networks Inc. Network distributed remultiplexer for video program bearing transport streams
FI107210B (fi) * 1999-07-09 2001-06-15 Nokia Networks Oy Menetelmä puhelujen välittämiseksi pakettiverkon kautta
US7349393B2 (en) * 1999-12-02 2008-03-25 Verizon Business Global Llc Method and system for implementing an improved universal packet switching capability in a data switch
AU2001275777A1 (en) * 2000-06-15 2001-12-24 France Telecom Video interfacing arrangement, distribution system and a method for transferringencoded video programs and sequences over a wide area network
US6771703B1 (en) * 2000-06-30 2004-08-03 Emc Corporation Efficient scaling of nonscalable MPEG-2 Video
US6947556B1 (en) * 2000-08-21 2005-09-20 International Business Machines Corporation Secure data storage and retrieval with key management and user authentication
WO2002023315A2 (fr) * 2000-09-12 2002-03-21 Aladdin Knowledge Systems, Ltd. Systeme destine a la gestion des droits, permettant la lecture de contenu numerique en ligne
CA2426159A1 (fr) * 2000-10-26 2002-09-06 General Instrument Corporation Application des droits de contenus et conditions destinees au contenu multimedia
US7023924B1 (en) * 2000-12-28 2006-04-04 Emc Corporation Method of pausing an MPEG coded video stream
US6763025B2 (en) * 2001-03-12 2004-07-13 Advent Networks, Inc. Time division multiplexing over broadband modulation method and apparatus
JP2002278859A (ja) * 2001-03-16 2002-09-27 Nec Corp コンテンツ配信システム、コンテンツ配信方法及びコンテンツを再生するためのコンテンツ再生装置
US6968091B2 (en) * 2001-09-18 2005-11-22 Emc Corporation Insertion of noise for reduction in the number of bits for variable-length coding of (run, level) pairs
US7340603B2 (en) * 2002-01-30 2008-03-04 Sony Corporation Efficient revocation of receivers
US7080043B2 (en) * 2002-03-26 2006-07-18 Microsoft Corporation Content revocation and license modification in a digital rights management (DRM) system on a computing device
FR2843517B1 (fr) * 2002-08-06 2005-02-11 Medialive Dispositif pour le brouillage de contenus multimedias et audiovisuels de type mpeg-4
FR2849563B1 (fr) * 2002-12-31 2005-02-11 Medialive Marquage personnalise pour la protection de flux audiovisuels numeriques
US7693222B2 (en) * 2003-08-13 2010-04-06 Ericsson Television Inc. Method and system for re-multiplexing of content-modified MPEG-2 transport streams using PCR interpolation

Also Published As

Publication number Publication date
CN1954609A (zh) 2007-04-25
FR2868654A1 (fr) 2005-10-07
CN102625148A (zh) 2012-08-01
US20110119699A1 (en) 2011-05-19
WO2005101836A1 (fr) 2005-10-27
US20120291061A1 (en) 2012-11-15
EP1733559A1 (fr) 2006-12-20
US8782688B2 (en) 2014-07-15
US8229117B2 (en) 2012-07-24

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